Black Lung Benefits Check Delivery Assurance Act of 1991

Black Lung Benefits Check Delivery Assurance Act of 1991 - Amends the Federal Mine Safety and Health Act of 1977 to provide that if the regularly scheduled delivery date for black lung benefit checks falls on a weekend or a legal public holiday, then such checks shall be mailed for delivery on the first day preceding the weekend or holiday, even if the delivery would be made before the end of the month for which such checks are issued. Provides that if as a consequence of such modified delivery date the payment is more than the correct authorized amount, no action shall be taken to recover the incorrect portion.